Document Detail

Expression of size-polymorphic androgen receptor gene in uterine leiomyoma according to the number of cytosine, adenine, and guanine repeats in androgen receptor alleles.
MedLine Citation:
PMID:  10601839     Owner:  NLM     Status:  MEDLINE    
The amino terminus region of the androgen receptor (AR) gene in the X chromosome involves the cytosine, adenine, and guanine (CAG) repeats. Random X chromosome inactivation with AR alleles in individual cells occurs in females. Therefore, probably either paternal or maternal single dominant polymorphic AR mRNA must be expressed in neoplastic tissue originating from monoclone. This prompted us to determine the deviated numbers of CAG repeats in AR mRNA to understand the clonality of uterine leiomyoma. A solitary node of leiomyoma was macroscopically found in 7 cases, and multiple nodes were found in another 23 cases. Homozygous CAG repeats (22.0 +/- 2.3) in AR alleles were found in 5 of 30 cases, and either a large or small size of AR mRNA expression, were found in individual nodes of uterine leiomyoma, although paternal and maternal AR mRNAs from normal uterine myometrium were consistently expressed as AR alleles. There was no significant specificity in activated AR alleles related to CAG numbers in individual nodes. Therefore, an individual node of uterine leiomyoma might be formed from an independent monoclonal uterine leiomyoma cell.
J Fujimoto; R Hirose; H Sakaguchi; T Tamaya
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine     Volume:  21     ISSN:  1010-4283     ISO Abbreviation:  Tumour Biol.     Publication Date:    2000 Jan-Feb
Date Detail:
Created Date:  2000-02-18     Completed Date:  2000-02-18     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8409922     Medline TA:  Tumour Biol     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  33-7     Citation Subset:  IM    
Copyright Information:
Copyright 2000 S. Karger AG, Basel
Department of Obstetrics and Gynecology, Gifu University School of Medicine, Gifu City, Japan.
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MeSH Terms
Gene Expression Regulation, Neoplastic*
Leiomyoma / genetics*
Middle Aged
Polymorphism, Genetic*
RNA, Messenger / genetics
Receptors, Androgen / biosynthesis,  genetics*
Trinucleotide Repeats / genetics*
Uterine Neoplasms / genetics*
Reg. No./Substance:
0/RNA, Messenger; 0/Receptors, Androgen; 71-30-7/Cytosine; 73-24-5/Adenine; 73-40-5/Guanine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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